Officec



(No Model.)

I W. EL VOLZ.

SURFACE-CONDENSER AND WATER HEATER. No. 384,944. Patented June 19, 1888.

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' UNITED STATES PATENT OFFICE.

WILLIAM E. VOLZ, OF NEW YORK, N. Y.

SURFACE-CONDENSER AND WATER-HEATER.

SPECIFICATION forming part of LettersPatent. No. 384,944, dat d June 1388- Applicaiion filed December-2S, 1887. Serial No. 239,230. (No model.)

To all whom it may concern:

Be it known that I, \VILLIAM E. VOLZ, of the city, county, and State of New York, have invented certain new and useful Improve mentsin Surface-Condensers and ater-Heaters, of which the following is a specification.

This invention relates to an improved surface-condenser in which a portion of the tubes is used as a feed-water heater, so as to dispense with a separate feed'water heater, the condenser and heater being inclosed in one casing.

The invention consists of a surface-condenser whiehis provided above the condensing-tubes with a series of feed-water-heating tubes, which are supplied with feed-water by an inlet and outlet pipe, the water-spaces of the condensing and feed-water-heating tubes being separated by horizontal partiti0n-plates in the bonnets, which are further provided with a vertical partition-plate intermediately between the feed-waterinlet and outlet pipes, as will appear more fully hereinafter, and finally be pointed out in the claim.

In the accompanying drawings,Figure 1 represents a side elevation, partly in section, of my improved surface-condenser; and Fig. 2 is an end elevation of the same.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the casing, B the tube-heads, and O the bonnets,of a surface-condenser of the Well-known construction generally used in connection with marine engines. The exhaust steam enters into the condenser through a pipe, (1, at the top of the casing A, and is condensed bycontact with a large number of condensing-tubes, a a, which are kept cool by water pumped through the same. The cooling-waterenters through an iuletpipe, D, at the lower end of the bonnet O and passes out through an outlet-pipe, D, at the upper part of the opposite bonnet C, it being conducted through one group of condenser-tubes after the other by the usual horizontal partition-plates, c e, in the bonnets O O. V

The casing A of my improved surface condenser is made somewhat higher than usual in condensers, so as to gain additional space at the upper part for arranging a series of feedwater-heating tubes, 1) I), above and parallel to the condensing-tubes, said heating-tubes being supported by suitable packing-glands in the tube-heads B B in the same manner as the condensing-tubes a a, and separated by horizontal partition-plates e in the bonnets O 0 from the water space of the condensing-tubes. If desired, separate bonnets for the condensing and feedwater-heating tubes may be used,

sidewise of the inlet-pipe and separated from the same by a vertical partition-plate, c". When the outlet-pipe g is located at the opposite bonnet, as shown in dotted lines at the V right-hand side of Fig. 1, a vertical partitionplate has to be arranged in each bonnet. From the outlet-pipe g the feed-water is returned to the boiler. The water of condensation is conducted through an outlet pipe, h, at the lower part of the casing to the hot well and then forced by a feed-pump through the feed water heating tubes 12 b back to the boiler. it

By combining the surfacecondenser with a feed-water heater in the manner described the combined condenser and feed-water heater can be furnished at a small additional expense over the cost of an ordinary surface condenser. The feed-water is quickly and effectively heated during its passages through the heatingtubes, as the same are acted upon by the exhaust steam while it is in its hottest condition directly after entering into the condenser. of space is saved in the hold of vessels and the increased cost of an independent feedwater heater dispensed with.

I am aware that surfacecondensers in which In this manner a considerable amount the feed-water heater is arranged on top of the p ICO tubes are arranged transversely to the condensing-tubes and require, therefore, separate tube-heads, while in my condenser the extended tube-heads of the condenser are used for supporting the feed-water-heating tubes. This not only simplifies the construction of the condenser, but also facilitates the connection of the condenser and feed-water heater with the water supply and discharge pipes, which are all arranged at the ends of the condensercasing.

Having thus described my invention,l claim as new and desire to secure by Letters Patent- In a surface condenser, the combination,

with a series of condensing-tubes arranged at r the lower part of the condenser-casing, of a series of feed water-heating tubes located above and parallel with said condensing-tubes, tube-heads supporting both the heating and condensing tubes, and bonnets provided with horizontal division-plates for separating the waterspaces of the condensing and feed-Waterheating tubes, and with a vertical partitionplate located in the bonnet or bonnets of the feed-water-heating pipes intermediately be tween the feed-water supply and discharge pipes, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

XVILLIAM E. VOLZ.

\Vitnesses:

OSCAR F. GUNZ, JOHN A. STRALEY. 

